DSL connection drops frequently

The DSL connection between the FRITZ!Box and your DSL Internet service provider's exchange drops several times a day. When this occurs, the "Power" LED on the FRITZ!Box flashes and stays lit as soon as the Internet connection has been re-established.

If you have an analog landline, this issue may occur very often when you accept a call to your landline number or make a call from your landline.

The following error message is displayed in the event log of the FRITZ!Box:

Cause

The stability of the DSL connection primarily depends on the length and quality of the access line. Faults in the cabling or problems with the Internet service provider's exchange (DSLAM) can also affect it.

Important:Some of the settings described here are only displayed if the advanced view is enabled in the user interface. The configuration procedure and notes on functions given in this guide refer to the latest FRITZ!OS.

Simply proceed as described below. After each measure, check whether the issue persists.

Next to "Intended signal-to-noise ratio" under "Receive direction", move the setting one step farther to the left towards "Maximum stability".

Important:If you move the controls too far towards "Maximum stability", with some DSL lines you will no longer be able to establish a DSL connection. Therefore, do not select the setting "Maximum stability" right away. Instead, push the control gradually to the left in order to determine the best setting for your DSL line.

Click "Apply" to save your settings.

If the DSL connection continues to drop frequently:

Repeat steps 4 - 5 until the DSL connection is stable.

5 Checking the DSL line

There may be a problem with the DSL line. Since it may take a while for your DSL provider to check your line, you may be charged for the service, and our experience shows that there is often a problem with DSL lines even if they have been checked by your provider, proceed as follows:

Disconnect the FRITZ!Box from the DSL line.

Connect a different DSL modem to the DSL line.

Test whether the DSL connection remains stable when you use this DSL modem.

If the DSL connection continues to drop, there is a problem with your line: